We shall not cease from exploration
And the end of all our exploring
Will be to arrive where we started
And know the place for the first time.

T.S. Eliot — “Little Gidding” Four Quartets

There are two famous metaphors for time: the great wheel of time– things recur, cycles – and time as an arrow – the irreversible process of birth, growth and death. Nothing ever quite repeats and yet somehow they do repeat, as variations upon a theme…. Most of all, I just love looking. John R Walker February 2014